Cal. Code Regs. tit. 18, § 15103.2
(a) Real Property.
Real property in this State belonging to a nonresident donor is subject to the Gift Tax Law.
(b) Tangible Personal Property.
Tangible personal property permanently in this State belonging to a nonresident donor is subject to the Gift Tax Law.
(c) Intangible Personal Property.
(2) Had a reciprocity provision in its law exempting from its tax the intangibles of nonresidents of other jurisdictions whose laws, in turn, contain a similar exemption.
Note: As to the intangibles exemption of nonresident donors, see Section 15451 and 15451.1, and Revenue and Taxation Code Section 15451.
Note: Reference: Section 15103, Revenue and Taxation Code.
Ordinarily, intangible personal property belonging to a nonresident donor is not subject to the Gift Tax Law unless it has acquired a so-called “business situs” (i. e., been actively used in connection with some business) in this State.
Any intangible personal property of a nonresident donor otherwise subject to the Gift Tax Law is not subject thereto if transferred by a donor who at the date of the transfer was a resident of a state or territory of the United States or of a foreign state or country which then imposed a gift tax in respect to the intangibles of its own residents, but either: